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- Definition

Related Party Transaction, Notes Payable, Number Of Notes

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

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No definition available.

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- Definition

The fair value of notes issued in noncash investing and financing activities.

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- Definition

The cash outflow to reacquire common stock during the period.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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No definition available.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

Number of shares that have been repurchased and retired during the period.

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Investment in Affiliates and Related-Party Transactions - Narrative (Details) shares in Millions, $ in Millions		1 Months Ended	12 Months Ended
	Oct. 17, 2019 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2014 note
Related Party Transaction [Line Items]
Number of shares repurchased (in shares) \| shares			90.0	38.0	144.0
Amount of shares repurchased			$ 2,886	$ 867	$ 3,373
January 2019 program
Related Party Transaction [Line Items]
Number of shares repurchased (in shares) \| shares		3.3
Conrail
Related Party Transaction [Line Items]
Payable balance		$ 217		217
Corporate Joint Venture \| Conrail
Related Party Transaction [Line Items]
Ownership percentage			42.00%
Voting interest percentage			50.00%
Difference between carrying amount and underlying equity			$ 331
Promissory notes executed \| note						2
Interest expense			$ 6	6	$ 6
Corporate Joint Venture \| Conrail \| Long-term Debt \| 2.89% Promissory Note Due October 2044
Related Party Transaction [Line Items]
Previous notes converted in non-cash transaction				$ 224
Note interest rate				2.89%
Corporate Joint Venture \| Conrail \| Long-term Debt \| 1.31% Promissory Note Due December 2050
Related Party Transaction [Line Items]
Note interest rate				1.31%
New notes issued in non-cash transaction				$ 441
Affiliated Entity \| TTX
Related Party Transaction [Line Items]
Ownership percentage			20.00%
Affiliated Entity \| MR Argent Advisor LLC \| January 2019 program
Related Party Transaction [Line Items]
Number of shares repurchased (in shares) \| shares	14.1
Amount of shares repurchased	$ 319